package org.zjt.review

/**
  * DESC    
  *
  * @author
  * @create 2017-06-20 下午6:24
  **/
object StringTest extends App {

  //String 不可修改
  var a: String = "hello"
  a += "222"
  println(a)


  //StringBuffer
  var b = new StringBuffer()
  b.append("zhang")
  println(b)



}
